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AssigneeCentral Glass Company, Limited
InventorsFuyuhiko Sakyu, Yasuo Hibino, Satoshi Yoshikawa, Ryouichi Tamai, Yoshihiko Gotoh
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The present invention relates to a method for producing 1,1,1,3,3-pentafluoropropane. This method includes a step of adding hydrogen fluoride to 1,3,3,3-tetrafluoropropene in a liquid phase in the presence of a hydrohalogenation catalyst. This method is a useful method for producing 1,1,1,3,3-pentafluoropropane in an industrial scale, because yield of 1,1,1,3,3-pentafluoropropane is high. According to the invention, 1,3,3,3-tetrafluoropropene may be produced by a method including a step of reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst, or by another method including a step of reacting 1-chloro-3,3,3-trifluoropropene with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst. According to the invention, 1-chloro-3,3,3-trifluoropropene may be produced by a method including a step of reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst.
A method for producing 1,1,1,3,3-pentafluoropropane, comprising a step of adding hydrogen fluoride to 1,3,3,3-tetrafluoropropene in a liquid phase in the presence of a hydrohalogenation catalyst that comprises at least one antimony halide;
A method for producing 1,3,3,3-tetrafluoropropene, comprising a step of reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst at a temperature of 400-500.degree. C.
A method for producing 1,3,3,3-tetrafluoropropene, comprising:
Dependencies are inferred from the claim text.